Question: What Is The Best Definition For Epidemiology?

What are the 3 main elements of the definition of epidemiology?

Epidemiology includes assessment of the distribution (including describing demographic characteristics of an affected population), determinants (including a study of possible risk factors), and the application to control health problems (such as closing a restaurant)..

What are the 3 major types of epidemiologic studies?

Three major types of epidemiologic studies are cohort, case-control, and cross-sectional studies (study designs are discussed in more detail in IOM, 2000). A cohort, or longitudinal, study follows a defined group over time.

What is risk in epidemiology?

Risk. (1) Epidemiological definition. The probability that an event will occur e.g. that an individual will become ill or die within a stated period of time or age. Formally defined as the proportion of initially disease free individuals who develop disease over a defined period of observation.

What is the definition of an epidemiologist?

An epidemiologist is a doctor who specializes in the patterns of diseases that spread between people. Epidemiologists study things like the causes and treatment of lung disease, for example. If you’re interested in public health or communicable illnesses, you might decide to be an epidemiologist one day.

What is epidemiology and why is it important?

It is the scientific method of investigation problem-solving used by disease detectives— epidemiologists, laboratory scientists, statisticians, physicians and other health care providers, and public health professionals—to get to the root of health problems and outbreaks in a community.

What are the four methods of epidemiology?

Epidemiological studies generally fall into four broad categories:cross-sectional studies.case-control studies.cohort studies.intervention studies.

What is an example of epidemiology?

Epidemiological studies measure the risk of illness or death in an exposed population compared to that risk in an identical, unexposed population (for example, a population the same age, sex, race and social status as the exposed population).

What is the aim of epidemiology?

The principal aim of epidemiology is to identify factors related to the occurrence of disease. Identification of these factors both causal ( causation) and risk factors, enable developing a rational basis for prevention ( epidemiology, prevention).

What is the main purpose of epidemiology?

Epidemiology is the study of how often diseases occur in different groups of people and why. Epidemiological information is used to plan and evaluate strategies to prevent illness and as a guide to the management of patients in whom disease has already developed.

What are the advantages of epidemiology?

Epidemiology offers powerful tools to quantify the degree to which risk factors and humanitarian interventions affect population health in a crisis. These tools include surveys, surveillance, analysis of programme data, and rapid assessment.

What are the principles of epidemiology?

Uses of EpidemiologyCount health-related events.Describe the distribution of health-related events in the population.Describe clinical patterns.Identify risk factors for developing diseases.Identify causes or determinants of disease.Identify control and/or preventive measures.More items…•

What are epidemiological terms?

Agents – are biological, physical, or chemical factors that contribute to the occurrence of a disease. Biological agents such as viruses and bacteria are often necessary causes for (infectious) diseases.

Is an epidemiologist a medical doctor?

Are epidemiologists considered medical doctors? No. While epidemiologists study and investigate the causes and sources of diseases in much the same way as medical doctors, they’re not considered actual physicians.

What are the two types of epidemiology?

Epidemiologic studies fall into two categories: experimental and observational.

What tools do Epidemiologists use?

Proportions, ratios, rates, prevalence, incidence, study designs, bias, confounding, effect modification, odds and risk ratios, statistical power, and confidence intervals are defined and discussed. Descriptive epidemiology is concerned with describing the distribution of disease by person, place, and time.

What are the 5 W’s of epidemiology?

The difference is that epidemiologists tend to use synonyms for the 5 W’s: diagnosis or health event (what), person (who), place (where), time (when), and causes, risk factors, and modes of transmission (why/how).

What is epidemiologic evidence?

However, epidemiological studies play a unique role in the assessment of the health risk of environmental factors. Unlike laboratory experiments, epidemiology provides evidence based on studies of human populations under real-world conditions.

What is epidemiology study design?

In epidemiology, researchers are interested in measuring or assessing the relationship of exposure with a disease or an outcome. As a first step, they define the hypothesis based on the research question and then decide which study design will be best suitable to answer that question.